QuadraFire Snap Disc #3 Castile, Contour, Edge, Mt Vernon, Trekker SRV230-1290

QuadraFire & Heatilator #3 Snap Disc 250F High Limit Switch W/Reset, SRV230-1290

Heatilator PS35, PS50, CAB50 High Limit Snap Disc #3 SRV230-1290, OEM Quality